Part 7 of Microphone Technology with Doug Ford, former head designer at Rode Microphones.<br />This video Doug takes you through the design of the Rode NT3 and NT1000 microphone designs.<br />There is a ton of stuff in here:<br />Closed loop unity gain JFET and bipolar follow circuits.<br />Bootstrapping out miller capacitance.<br />JFET biasing.<br />How to eliminate expensive high value resistors.<br />How to add a bridged-T network to add marketing "pizazz" to a microphone.<br />How to stop oscillation in closed loop systems.<br />How to test and design closed loop systems for stability.<br />Dominate pole compensation.<br />Traps for young players in power amplifier stability.<br />How circuits with capacitive loads oscillate.<br />Emitter degeneration.<br />Parasitic inductances and their effects.<br />How to design a low noise and ultra high dynamic range valve based microphone preamplifier.<br />Microphone power supplies.<br />And how to design an amplified zener current source.<br /><br />All other videos in this series are HERE: https://www.youtube.com/playlist?list=PLvOlSehNtuHv98KUcud260yJBRQngBKiw<br /><br />Forum HERE: http://www.eevblog.com/forum/blog/eevblog-629-how-to-design-a-microphone-preamplifier/<br /><br />EEVblog Main Web Site:<br />http://www.eevblog.com<br />EEVblog Amazon Store:<br />http://astore.amazon.com/eevblogstore-20<br />Donations:<br />http://www.eevblog.com/donations/<br />Projects:<br />http://www.eevblog.com/projects/<br />Electronics Info Wiki:<br />http://www.eevblog.com/wiki/
